Telescopic Alidade Manufacturer,Supplier and Exporter in India
Product Code : EL-SE-8843
Jlab Export is a leading Telescopic Alidade Manufacturer,and suppliers in India
Telescopic Alidade (code EL-SE-8843) is a plane-table sighting instrument with a telescope, like the upper part of a theodolite, set over a straight fiducial edge so that a sighted line can be ruled straight onto the drawing sheet. A stadia diaphragm in the telescope lets it work as a tacheometer for horizontal distances and elevations. JLab manufactures this plane-table alidade in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Sighting | Telescope, similar to the upper part of a theodolite |
| Diaphragm | Stadia, for tacheometric distances and elevations |
| Fiducial edge | Aligned with the line of sight |
| Quality check | Each alidade is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SE-8843 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Plotting a Ray Along the Fiducial Edge
With the plane table set up and oriented over the station, the fiducial edge is placed against the plotted station point and the object is sighted through the telescope. Since the line of sight runs along the edge, a ray drawn against it points at the object, and the distance to the object is scaled off along that ray to plot it at the map scale.
Stadia Readings for Distance and Height
When a staff is held on the object, the interval read between the upper and lower stadia hairs gives the horizontal distance by calculation, and the elevation of the point is worked out from the same sight. Points can then be fixed without chaining out to each one.
Plane Table, Staff and Rods for Alidade Work
- Plane Table — flat board for making field charts, drawings and maps.
- Levelling Staff — telescopic staff for reading against the stadia hairs.
- Ranging Rod — coloured pole for marking the points being sighted.
The Survey Equipment category and its parent Survey Equipment section list more plane-table and field items.
Request a Quote
Place an enquiry using Add To Cart or reach JLab via the contact page with the quantity, any plane table or staff to go with it, and the delivery town.
Last updated: 29 October 2026
